8725990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 19869696

約数和(自身を除く): 11143706

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 43, 65, 70, 86, 91, 130, 182, 215, 223, 301, 430, 446, 455, 559, 602, 910, 1115, 1118, 1505, 1561, 2230, 2795, 2899, 3010, 3122, 3913, 5590, 5798, 7805, 7826, 9589, 14495, 15610, 19178, 19565, 20293, 28990, 39130, 40586, 47945, 67123, 95890, 101465, 124657, 134246, 202930, 249314, 335615, 623285, 671230, 872599, 1246570, 1745198, 4362995, 8725990]

約数ペア:

[(1, 8725990), (2, 4362995), (5, 1745198), (7, 1246570), (10, 872599), (13, 671230), (14, 623285), (26, 335615), (35, 249314), (43, 202930), (65, 134246), (70, 124657), (86, 101465), (91, 95890), (130, 67123), (182, 47945), (215, 40586), (223, 39130), (301, 28990), (430, 20293), (446, 19565), (455, 19178), (559, 15610), (602, 14495), (910, 9589), (1115, 7826), (1118, 7805), (1505, 5798), (1561, 5590), (2230, 3913), (2795, 3122), (2899, 3010)]